1012120100010 has 32 divisors (see below), whose sum is σ = 2698986934080. Its totient is φ = 269898693264.

The previous prime is 1012120100003. The next prime is 1012120100023. The reversal of 1012120100010 is 100010212101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1012120099965 and 1012120100001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1874296212 + ... + 1874296751.

It is an arithmetic number, because the mean of its divisors is an integer number (84343341690).

Almost surely, 2^{1012120100010} is an apocalyptic number.

1012120100010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1012120100010 is an abundant number, since it is smaller than the sum of its proper divisors (1686866834070).

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

1012120100010 is a wasteful number, since it uses less digits than its factorization.

1012120100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748592979 (or 3748592973 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1012120100010 its reverse (100010212101), we get a palindrome (1112130312111).

The spelling of 1012120100010 in words is "one trillion, twelve billion, one hundred twenty million, one hundred thousand, ten".