40122020143021 has 16 divisors (see below), whose sum is σ = 42299238481920. Its totient is φ = 38000055619440.

The previous prime is 40122020143003. The next prime is 40122020143123. The reversal of 40122020143021 is 12034102022104.

It is a cyclic number.

It is not a de Polignac number, because 40122020143021 - 2⁵ = 40122020142989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40122020142983 and 40122020143001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40122020143921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35174470 + ... + 36297208.

It is an arithmetic number, because the mean of its divisors is an integer number (2643702405120).

Almost surely, 2^{40122020143021} is an apocalyptic number.

It is an amenable number.

40122020143021 is a deficient number, since it is larger than the sum of its proper divisors (2177218338899).

40122020143021 is a wasteful number, since it uses less digits than its factorization.

40122020143021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147344.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 40122020143021 its reverse (12034102022104), we get a palindrome (52156122165125).

The spelling of 40122020143021 in words is "forty trillion, one hundred twenty-two billion, twenty million, one hundred forty-three thousand, twenty-one".