121201120002 has 16 divisors (see below), whose sum is σ = 248953652352. Its totient is φ = 39308471280.

The previous prime is 121201119973. The next prime is 121201120037. The reversal of 121201120002 is 200021102121.

It is a super-2 number, since 2×121201120002² (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 121201120002.

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, 272975274 + ... + 272975717.

It is an arithmetic number, because the mean of its divisors is an integer number (15559603272).

Almost surely, 2^121201120002 is an apocalyptic number.

121201120002 is an abundant number, since it is smaller than the sum of its proper divisors (127752532350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121201120002 is a wasteful number, since it uses less digits than its factorization.

121201120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545951033.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121201120002 its reverse (200021102121), we get a palindrome (321222222123).

The spelling of 121201120002 in words is "one hundred twenty-one billion, two hundred one million, one hundred twenty thousand, two".