1012020210100 has 36 divisors (see below), whose sum is σ = 2291565767904. Its totient is φ = 387207731680.

The previous prime is 1012020210079. The next prime is 1012020210137. The reversal of 1012020210100 is 10120202101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220002094 + ... + 220006693.

It is an arithmetic number, because the mean of its divisors is an integer number (63654604664).

Almost surely, 2^{1012020210100} is an apocalyptic number.

1012020210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012020210100 is an abundant number, since it is smaller than the sum of its proper divisors (1279545557804).

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

1012020210100 is a wasteful number, since it uses less digits than its factorization.

1012020210100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440008824 (or 440008817 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1012020210100 its reverse (10120202101), we get a palindrome (1022140412201).

1012020210100 divided by its reverse (10120202101) gives a square (100 = 10²).

The spelling of 1012020210100 in words is "one trillion, twelve billion, twenty million, two hundred ten thousand, one hundred".