1210231122100 has 648 divisors, whose sum is σ = 3635405444160. Its totient is φ = 342057830400.

The previous prime is 1210231122077. The next prime is 1210231122137. The reversal of 1210231122100 is 12211320121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 844542984 + ... + 844544416.

Almost surely, 2^{1210231122100} is an apocalyptic number.

1210231122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210231122100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1817702722080).

1210231122100 is an abundant number, since it is smaller than the sum of its proper divisors (2425174322060).

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

1210231122100 is a wasteful number, since it uses less digits than its factorization.

1210231122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561 (or 1530 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1210231122100 its reverse (12211320121), we get a palindrome (1222442442221).

It can be divided in two parts, 1210231 and 122100, that added together give a palindrome (1332331).

The spelling of 1210231122100 in words is "one trillion, two hundred ten billion, two hundred thirty-one million, one hundred twenty-two thousand, one hundred".