102212120101 has 32 divisors (see below), whose sum is σ = 133298742528. Its totient is φ = 76057297920.

The previous prime is 102212120081. The next prime is 102212120159. The reversal of 102212120101 is 101021212201.

It is a cyclic number.

It is not a de Polignac number, because 102212120101 - 2¹¹ = 102212118053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212120161) 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, 2112486 + ... + 2160328.

It is an arithmetic number, because the mean of its divisors is an integer number (4165585704).

Almost surely, 2^102212120101 is an apocalyptic number.

It is an amenable number.

102212120101 is a deficient number, since it is larger than the sum of its proper divisors (31086622427).

102212120101 is a wasteful number, since it uses less digits than its factorization.

102212120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49261.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102212120101 its reverse (101021212201), we get a palindrome (203233332302).

The spelling of 102212120101 in words is "one hundred two billion, two hundred twelve million, one hundred twenty thousand, one hundred one".