210122012 has 12 divisors (see below), whose sum is σ = 368331600. Its totient is φ = 104884416.

The previous prime is 210121981. The next prime is 210122021. The reversal of 210122012 is 210221012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 210121984 and 210122002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41453 + ... + 46244.

It is an arithmetic number, because the mean of its divisors is an integer number (30694300).

Almost surely, 2^210122012 is an apocalyptic number.

It is an amenable number.

210122012 is a deficient number, since it is larger than the sum of its proper divisors (158209588).

210122012 is a wasteful number, since it uses less digits than its factorization.

210122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88300 (or 88298 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 210122012 is about 14495.5859488328. The cubic root of 210122012 is about 594.5072888312.

Adding to 210122012 its reverse (210221012), we get a palindrome (420343024).

The spelling of 210122012 in words is "two hundred ten million, one hundred twenty-two thousand, twelve".