121210022211 has 16 divisors (see below), whose sum is σ = 163323014400. Its totient is φ = 79956344160.

The previous prime is 121210022201. The next prime is 121210022243. The reversal of 121210022211 is 112220012121.

It is not a de Polignac number, because 121210022211 - 2⁶ = 121210022147 is a prime.

It is a super-2 number, since 2×121210022211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121210022201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452805 + ... + 668918.

It is an arithmetic number, because the mean of its divisors is an integer number (10207688400).

Almost surely, 2^121210022211 is an apocalyptic number.

121210022211 is a deficient number, since it is larger than the sum of its proper divisors (42112992189).

121210022211 is a wasteful number, since it uses less digits than its factorization.

121210022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122106.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121210022211 its reverse (112220012121), we get a palindrome (233430034332).

The spelling of 121210022211 in words is "one hundred twenty-one billion, two hundred ten million, twenty-two thousand, two hundred eleven".