1021211112300 has 144 divisors (see below), whose sum is σ = 3175205523840. Its totient is φ = 252478448640.

The previous prime is 1021211112293. The next prime is 1021211112347. The reversal of 1021211112300 is 32111121201.

It is a super-2 number, since 2×1021211112300² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1021211112300.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1152610 + ... + 1836009.

It is an arithmetic number, because the mean of its divisors is an integer number (22050038360).

Almost surely, 2^{1021211112300} is an apocalyptic number.

1021211112300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021211112300 is an abundant number, since it is smaller than the sum of its proper divisors (2153994411540).

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

1021211112300 is a wasteful number, since it uses less digits than its factorization.

1021211112300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988720 (or 2988713 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1021211112300 its reverse (32111121201), we get a palindrome (1053322233501).

The spelling of 1021211112300 in words is "one trillion, twenty-one billion, two hundred eleven million, one hundred twelve thousand, three hundred".