1101202122021 has 32 divisors (see below), whose sum is σ = 1556609725440. Its totient is φ = 690074816256.

The previous prime is 1101202121977. The next prime is 1101202122047. The reversal of 1101202122021 is 1202212021011.

It is not a de Polignac number, because 1101202122021 - 2⁷ = 1101202121893 is a prime.

It is a super-2 number, since 2×1101202122021² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101202122221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164871960 + ... + 164878638.

It is an arithmetic number, because the mean of its divisors is an integer number (48644053920).

Almost surely, 2^{1101202122021} is an apocalyptic number.

It is an amenable number.

1101202122021 is a deficient number, since it is larger than the sum of its proper divisors (455407603419).

1101202122021 is a wasteful number, since it uses less digits than its factorization.

1101202122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10313.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1101202122021 its reverse (1202212021011), we get a palindrome (2303414143032).

The spelling of 1101202122021 in words is "one trillion, one hundred one billion, two hundred two million, one hundred twenty-two thousand, twenty-one".