1210222212100 has 108 divisors (see below), whose sum is σ = 3023648692848. Its totient is φ = 416918520000.

The previous prime is 1210222212083. The next prime is 1210222212109. The reversal of 1210222212100 is 12122220121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1210222212109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1126726 + ... + 1920925.

It is an arithmetic number, because the mean of its divisors is an integer number (27996747156).

Almost surely, 2^{1210222212100} is an apocalyptic number.

1210222212100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210222212100 is an abundant number, since it is smaller than the sum of its proper divisors (1813426480748).

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

1210222212100 is a wasteful number, since it uses less digits than its factorization.

1210222212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047714 (or 3047688 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1210222212100 its reverse (12122220121), we get a palindrome (1222344432221).

The spelling of 1210222212100 in words is "one trillion, two hundred ten billion, two hundred twenty-two million, two hundred twelve thousand, one hundred".