121121002210 has 32 divisors (see below), whose sum is σ = 247145693760. Its totient is φ = 42367831488.

The previous prime is 121121002183. The next prime is 121121002231. The reversal of 121121002210 is 12200121121.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24515952 + ... + 24520891.

It is an arithmetic number, because the mean of its divisors is an integer number (7723302930).

Almost surely, 2^121121002210 is an apocalyptic number.

121121002210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121121002210 is an abundant number, since it is smaller than the sum of its proper divisors (126024691550).

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

121121002210 is a wasteful number, since it uses less digits than its factorization.

121121002210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49036882.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121121002210 its reverse (12200121121), we get a palindrome (133321123331).

The spelling of 121121002210 in words is "one hundred twenty-one billion, one hundred twenty-one million, two thousand, two hundred ten".