210121001102212 has 24 divisors (see below), whose sum is σ = 369974834279960. Its totient is φ = 104414632519680.

The previous prime is 210121001102197. The next prime is 210121001102227. The reversal of 210121001102212 is 212201100121012.

It is an interprime number because it is at equal distance from previous prime (210121001102197) and next prime (210121001102227).

It can be written as a sum of positive squares in 4 ways, for example, as 6384030968896 + 203736970133316 = 2526664^2 + 14273646^2 .

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, 89708637 + ... + 92021092.

Almost surely, 2^{210121001102212} is an apocalyptic number.

It is an amenable number.

210121001102212 is a deficient number, since it is larger than the sum of its proper divisors (159853833177748).

210121001102212 is a wasteful number, since it uses less digits than its factorization.

210121001102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181731511 (or 181731509 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210121001102212 its reverse (212201100121012), we get a palindrome (422322101223224).

The spelling of 210121001102212 in words is "two hundred ten trillion, one hundred twenty-one billion, one million, one hundred two thousand, two hundred twelve".