1000212012100 has 36 divisors (see below), whose sum is σ = 2480525791744. Its totient is φ = 342929832480.

The previous prime is 1000212012097. The next prime is 1000212012103. The reversal of 1000212012100 is 12102120001.

It is an interprime number because it is at equal distance from previous prime (1000212012097) and next prime (1000212012103).

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

It is not an unprimeable number, because it can be changed into a prime (1000212012103) 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, 714436452 + ... + 714437851.

Almost surely, 2^{1000212012100} is an apocalyptic number.

1000212012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000212012100 is an abundant number, since it is smaller than the sum of its proper divisors (1480313779644).

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

1000212012100 is a wasteful number, since it uses less digits than its factorization.

1000212012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428874324 (or 1428874317 counting only the distinct ones).

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

Adding to 1000212012100 its reverse (12102120001), we get a palindrome (1012314132101).

The spelling of 1000212012100 in words is "one trillion, two hundred twelve million, twelve thousand, one hundred".