121112121202210 has 32 divisors (see below), whose sum is σ = 218384860129920. Its totient is φ = 48359801532672.

The previous prime is 121112121202201. The next prime is 121112121202273. The reversal of 121112121202210 is 12202121211121.

It is a happy number.

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, 8595747 + ... + 17779513.

It is an arithmetic number, because the mean of its divisors is an integer number (6824526879060).

Almost surely, 2^{121112121202210} is an apocalyptic number.

121112121202210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121112121202210 is a deficient number, since it is larger than the sum of its proper divisors (97272738927710).

121112121202210 is a wasteful number, since it uses less digits than its factorization.

121112121202210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9186090.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121112121202210 its reverse (12202121211121), we get a palindrome (133314242413331).

The spelling of 121112121202210 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred twenty-one million, two hundred two thousand, two hundred ten".