1021101100212 has 24 divisors (see below), whose sum is σ = 2382631722016. Its totient is φ = 340358106528.

The previous prime is 1021101100199. The next prime is 1021101100223. The reversal of 1021101100212 is 2120011011201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630823 + ... + 1562094.

Almost surely, 2^{1021101100212} is an apocalyptic number.

1021101100212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021101100212 is an abundant number, since it is smaller than the sum of its proper divisors (1361530621804).

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

1021101100212 is a wasteful number, since it uses less digits than its factorization.

1021101100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231727 (or 2231725 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1021101100212 its reverse (2120011011201), we get a palindrome (3141112111413).

The spelling of 1021101100212 in words is "one trillion, twenty-one billion, one hundred one million, one hundred thousand, two hundred twelve".