121121010210212 has 12 divisors (see below), whose sum is σ = 213037715929500. Its totient is φ = 60253091373216.

The previous prime is 121121010210199. The next prime is 121121010210227. The reversal of 121121010210212 is 212012010121121.

It can be written as a sum of positive squares in 2 ways, for example, as 99833988956416 + 21287021253796 = 9991696^2 + 4613786^2 .

It is a super-2 number, since 2×121121010210212² (a number of 29 digits) contains 22 as substring.

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, 76853432087 + ... + 76853433662.

It is an arithmetic number, because the mean of its divisors is an integer number (17753142994125).

Almost surely, 2^{121121010210212} is an apocalyptic number.

It is an amenable number.

121121010210212 is a deficient number, since it is larger than the sum of its proper divisors (91916705719288).

121121010210212 is a wasteful number, since it uses less digits than its factorization.

121121010210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153706865950 (or 153706865948 counting only the distinct ones).

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

Adding to 121121010210212 its reverse (212012010121121), we get a palindrome (333133020331333).

The spelling of 121121010210212 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, ten million, two hundred ten thousand, two hundred twelve".