1021402220210 has 16 divisors (see below), whose sum is σ = 1935288417600. Its totient is φ = 387057683376.

The previous prime is 1021402220161. The next prime is 1021402220233. The reversal of 1021402220210 is 120222041201.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2687900390 + ... + 2687900769.

It is an arithmetic number, because the mean of its divisors is an integer number (120955526100).

Almost surely, 2^{1021402220210} is an apocalyptic number.

1021402220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021402220210 is a deficient number, since it is larger than the sum of its proper divisors (913886197390).

1021402220210 is a wasteful number, since it uses less digits than its factorization.

1021402220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5375801185.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1021402220210 its reverse (120222041201), we get a palindrome (1141624261411).

The spelling of 1021402220210 in words is "one trillion, twenty-one billion, four hundred two million, two hundred twenty thousand, two hundred ten".