121021001121212 has 24 divisors (see below), whose sum is σ = 220995380004000. Its totient is φ = 57879476081856.

The previous prime is 121021001121157. The next prime is 121021001121239. The reversal of 121021001121212 is 212121100120121.

It is a super-2 number, since 2×121021001121212² (a number of 29 digits) contains 22 as substring.

It is a congruent 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, 47159414 + ... + 49659362.

It is an arithmetic number, because the mean of its divisors is an integer number (9208140833500).

Almost surely, 2^{121021001121212} is an apocalyptic number.

It is an amenable number.

121021001121212 is a deficient number, since it is larger than the sum of its proper divisors (99974378882788).

121021001121212 is a wasteful number, since it uses less digits than its factorization.

121021001121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026165 (or 3026163 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121021001121212 its reverse (212121100120121), we get a palindrome (333142101241333).

The spelling of 121021001121212 in words is "one hundred twenty-one trillion, twenty-one billion, one million, one hundred twenty-one thousand, two hundred twelve".