121012202021212 has 12 divisors (see below), whose sum is σ = 213714209992360. Its totient is φ = 59950999166256.

The previous prime is 121012202021197. The next prime is 121012202021251. The reversal of 121012202021212 is 212120202210121.

It is a self number, because there is not a number n which added to its sum of digits gives 121012202021212.

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, 138775460598 + ... + 138775461469.

Almost surely, 2^{121012202021212} is an apocalyptic number.

It is an amenable number.

121012202021212 is a deficient number, since it is larger than the sum of its proper divisors (92702007971148).

121012202021212 is a wasteful number, since it uses less digits than its factorization.

121012202021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277550922180 (or 277550922178 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121012202021212 its reverse (212120202210121), we get a palindrome (333132404231333).

The spelling of 121012202021212 in words is "one hundred twenty-one trillion, twelve billion, two hundred two million, twenty-one thousand, two hundred twelve".