121101001012 has 12 divisors (see below), whose sum is σ = 214025037156. Its totient is φ = 59950990400.

The previous prime is 121101000983. The next prime is 121101001031. The reversal of 121101001012 is 210100101121.

It can be written as a sum of positive squares in 2 ways, for example, as 78762177316 + 42338823696 = 280646^2 + 205764^2 .

It is a super-2 number, since 2×121101001012² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121101001012.

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, 149877073 + ... + 149877880.

It is an arithmetic number, because the mean of its divisors is an integer number (17835419763).

Almost surely, 2^121101001012 is an apocalyptic number.

It is an amenable number.

121101001012 is a deficient number, since it is larger than the sum of its proper divisors (92924036144).

121101001012 is a wasteful number, since it uses less digits than its factorization.

121101001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299755058 (or 299755056 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121101001012 its reverse (210100101121), we get a palindrome (331201102133).

The spelling of 121101001012 in words is "one hundred twenty-one billion, one hundred one million, one thousand, twelve".