1210122220100 has 72 divisors (see below), whose sum is σ = 2706517792608. Its totient is φ = 469345363200.

The previous prime is 1210122220033. The next prime is 1210122220117. The reversal of 1210122220100 is 10222210121.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237074 + ... + 1573673.

Almost surely, 2^{1210122220100} is an apocalyptic number.

1210122220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210122220100 is an abundant number, since it is smaller than the sum of its proper divisors (1496395572508).

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

1210122220100 is a wasteful number, since it uses less digits than its factorization.

1210122220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810965 (or 1810958 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1210122220100 its reverse (10222210121), we get a palindrome (1220344430221).

The spelling of 1210122220100 in words is "one trillion, two hundred ten billion, one hundred twenty-two million, two hundred twenty thousand, one hundred".