101202210021 has 24 divisors (see below), whose sum is σ = 148352307040. Its totient is φ = 61320647520.

The previous prime is 101202210019. The next prime is 101202210097. The reversal of 101202210021 is 120012202101.

It is not a de Polignac number, because 101202210021 - 2¹ = 101202210019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101202209979 and 101202210006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101202260021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1684935 + ... + 1743963.

Almost surely, 2^101202210021 is an apocalyptic number.

101202210021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101202210021 is a deficient number, since it is larger than the sum of its proper divisors (47150097019).

101202210021 is a wasteful number, since it uses less digits than its factorization.

101202210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63777 (or 63766 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101202210021 its reverse (120012202101), we get a palindrome (221214412122).

The spelling of 101202210021 in words is "one hundred one billion, two hundred two million, two hundred ten thousand, twenty-one".