121133001210 has 64 divisors (see below), whose sum is σ = 313887450240. Its totient is φ = 29740665600.

The previous prime is 121133001137. The next prime is 121133001233. The reversal of 121133001210 is 12100331121.

It is a happy number.

It is a super-2 number, since 2×121133001210² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121133001210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247516 + ... + 550935.

It is an arithmetic number, because the mean of its divisors is an integer number (4904491410).

Almost surely, 2^121133001210 is an apocalyptic number.

121133001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121133001210 is an abundant number, since it is smaller than the sum of its proper divisors (192754449030).

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

121133001210 is a wasteful number, since it uses less digits than its factorization.

121133001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798863.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 121133001210 its reverse (12100331121), we get a palindrome (133233332331).

The spelling of 121133001210 in words is "one hundred twenty-one billion, one hundred thirty-three million, one thousand, two hundred ten".