121210122 has 16 divisors (see below), whose sum is σ = 264458592. Its totient is φ = 36730320.

The previous prime is 121210081. The next prime is 121210157. The reversal of 121210122 is 221012121.

It is a junction number, because it is equal to n+sod(n) for n = 121210098 and 121210107.

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, 918193 + ... + 918324.

It is an arithmetic number, because the mean of its divisors is an integer number (16528662).

Almost surely, 2^121210122 is an apocalyptic number.

121210122 is an abundant number, since it is smaller than the sum of its proper divisors (143248470).

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

121210122 is a wasteful number, since it uses less digits than its factorization.

121210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836533.

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

The square root of 121210122 is about 11009.5468571599. The cubic root of 121210122 is about 494.8948822805.

Adding to 121210122 its reverse (221012121), we get a palindrome (342222243).

The spelling of 121210122 in words is "one hundred twenty-one million, two hundred ten thousand, one hundred twenty-two".