1102202200021 has 12 divisors (see below), whose sum is σ = 1202220660132. Its totient is φ = 1009990989696.

The previous prime is 1102202199991. The next prime is 1102202200067. The reversal of 1102202200021 is 1200022022011.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 184028130225 + 918174069796 = 428985^2 + 958214^2 .

It is not a de Polignac number, because 1102202200021 - 2¹³ = 1102202191829 is a prime.

It is a super-2 number, since 2×1102202200021² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102202199974 and 1102202200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102202200091) 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, 23779426 + ... + 23825731.

It is an arithmetic number, because the mean of its divisors is an integer number (100185055011).

Almost surely, 2^{1102202200021} is an apocalyptic number.

It is an amenable number.

1102202200021 is a deficient number, since it is larger than the sum of its proper divisors (100018460111).

1102202200021 is a wasteful number, since it uses less digits than its factorization.

1102202200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47605320 (or 47605307 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1102202200021 its reverse (1200022022011), we get a palindrome (2302224222032).

The spelling of 1102202200021 in words is "one trillion, one hundred two billion, two hundred two million, two hundred thousand, twenty-one".