1210212120122 has 32 divisors (see below), whose sum is σ = 1903603291200. Its totient is φ = 576295420288.

The previous prime is 1210212120109. The next prime is 1210212120127. The reversal of 1210212120122 is 2210212120121.

It is a super-2 number, since 2×1210212120122² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1210212120122.

It is not an unprimeable number, because it can be changed into a prime (1210212120127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1027529 + ... + 1864467.

It is an arithmetic number, because the mean of its divisors is an integer number (59487602850).

Almost surely, 2^{1210212120122} is an apocalyptic number.

1210212120122 is a deficient number, since it is larger than the sum of its proper divisors (693391171078).

1210212120122 is a wasteful number, since it uses less digits than its factorization.

1210212120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837310.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1210212120122 its reverse (2210212120121), we get a palindrome (3420424240243).

Subtracting 1210212120122 from its reverse (2210212120121), we obtain a palindrome (999999999999).

The spelling of 1210212120122 in words is "one trillion, two hundred ten billion, two hundred twelve million, one hundred twenty thousand, one hundred twenty-two".