1102202122021 has 32 divisors (see below), whose sum is σ = 1481615831808. Its totient is φ = 791862704640.

The previous prime is 1102202121973. The next prime is 1102202122061. The reversal of 1102202122021 is 1202212022011.

It is a happy number.

It is not a de Polignac number, because 1102202122021 - 2⁷ = 1102202121893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1102202121986 and 1102202122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102202122061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208425 + ... + 1499281.

It is an arithmetic number, because the mean of its divisors is an integer number (46300494744).

Almost surely, 2^{1102202122021} is an apocalyptic number.

1102202122021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1102202122021 is a deficient number, since it is larger than the sum of its proper divisors (379413709787).

1102202122021 is a wasteful number, since it uses less digits than its factorization.

1102202122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291741.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1102202122021 its reverse (1202212022011), we get a palindrome (2304414144032).

The spelling of 1102202122021 in words is "one trillion, one hundred two billion, two hundred two million, one hundred twenty-two thousand, twenty-one".