101221212022101 has 12 divisors (see below), whose sum is σ = 146901348256000. Its totient is φ = 67160993757480.

The previous prime is 101221212022097. The next prime is 101221212022111. The reversal of 101221212022101 is 101220212122101.

101221212022101 is a `hidden beast` number, since 10 + 1 + 221 + 21 + 202 + 210 + 1 = 666.

It is not a de Polignac number, because 101221212022101 - 2² = 101221212022097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221212022111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26651186101 + ... + 26651189898.

Almost surely, 2^{101221212022101} is an apocalyptic number.

It is an amenable number.

101221212022101 is a deficient number, since it is larger than the sum of its proper divisors (45680136233899).

101221212022101 is a wasteful number, since it uses less digits than its factorization.

101221212022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53302376216 (or 53302376213 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 101221212022101 its reverse (101220212122101), we get a palindrome (202441424144202).

The spelling of 101221212022101 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred twelve million, twenty-two thousand, one hundred one".