1020122110100 has 36 divisors (see below), whose sum is σ = 2221656609564. Its totient is φ = 406575732480.

The previous prime is 1020122110079. The next prime is 1020122110103. The reversal of 1020122110100 is 10112210201.

It can be written as a sum of positive squares in 6 ways, for example, as 3485485444 + 1016636624656 = 59038^2 + 1008284^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020122110103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18386057 + ... + 18441456.

It is an arithmetic number, because the mean of its divisors is an integer number (61712683599).

Almost surely, 2^{1020122110100} is an apocalyptic number.

1020122110100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020122110100 is an abundant number, since it is smaller than the sum of its proper divisors (1201534499464).

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

1020122110100 is a wasteful number, since it uses less digits than its factorization.

1020122110100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36827804 (or 36827797 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1020122110100 its reverse (10112210201), we get a palindrome (1030234320301).

The spelling of 1020122110100 in words is "one trillion, twenty billion, one hundred twenty-two million, one hundred ten thousand, one hundred".