101202122021 has 24 divisors (see below), whose sum is σ = 138306206304. Its totient is φ = 72792730080.

The previous prime is 101202121991. The next prime is 101202122027. The reversal of 101202122021 is 120221202101.

It is not a de Polignac number, because 101202122021 - 2³⁰ = 100128380197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101202121987 and 101202122005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101202122027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7214495 + ... + 7228508.

It is an arithmetic number, because the mean of its divisors is an integer number (5762758596).

Almost surely, 2^101202122021 is an apocalyptic number.

101202122021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101202122021 is a deficient number, since it is larger than the sum of its proper divisors (37104084283).

101202122021 is a wasteful number, since it uses less digits than its factorization.

101202122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14443041 (or 14443034 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101202122021 its reverse (120221202101), we get a palindrome (221423324122).

The spelling of 101202122021 in words is "one hundred one billion, two hundred two million, one hundred twenty-two thousand, twenty-one".