121011012212 has 24 divisors (see below), whose sum is σ = 224557578504. Its totient is φ = 56862221312.

The previous prime is 121011012197. The next prime is 121011012233. The reversal of 121011012212 is 212210110121.

It can be written as a sum of positive squares in 4 ways, for example, as 105648401296 + 15362610916 = 325036^2 + 123946^2 .

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, 1268273 + ... + 1360344.

It is an arithmetic number, because the mean of its divisors is an integer number (9356565771).

Almost surely, 2^121011012212 is an apocalyptic number.

It is an amenable number.

121011012212 is a deficient number, since it is larger than the sum of its proper divisors (103546566292).

121011012212 is a wasteful number, since it uses less digits than its factorization.

121011012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629315 (or 2629313 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121011012212 its reverse (212210110121), we get a palindrome (333221122333).

The spelling of 121011012212 in words is "one hundred twenty-one billion, eleven million, twelve thousand, two hundred twelve".