102021022101 has 16 divisors (see below), whose sum is σ = 143206315200. Its totient is φ = 64425817728.

The previous prime is 102021022093. The next prime is 102021022109. The reversal of 102021022101 is 101220120201.

It is an interprime number because it is at equal distance from previous prime (102021022093) and next prime (102021022109).

It is not a de Polignac number, because 102021022101 - 2³ = 102021022093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021022109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331945 + ... + 560561.

It is an arithmetic number, because the mean of its divisors is an integer number (8950394700).

Almost surely, 2^102021022101 is an apocalyptic number.

It is an amenable number.

102021022101 is a deficient number, since it is larger than the sum of its proper divisors (41185293099).

102021022101 is a wasteful number, since it uses less digits than its factorization.

102021022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236468.

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

Adding to 102021022101 its reverse (101220120201), we get a palindrome (203241142302).

The spelling of 102021022101 in words is "one hundred two billion, twenty-one million, twenty-two thousand, one hundred one".