201022101220101 has 32 divisors (see below), whose sum is σ = 306404707737600. Its totient is φ = 114837781235520.

The previous prime is 201022101220097. The next prime is 201022101220121. The reversal of 201022101220101 is 101022101220102.

It is not a de Polignac number, because 201022101220101 - 2² = 201022101220097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201022101220121) 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, 4146556780 + ... + 4146605258.

It is an arithmetic number, because the mean of its divisors is an integer number (9575147116800).

Almost surely, 2^{201022101220101} is an apocalyptic number.

201022101220101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201022101220101 is a deficient number, since it is larger than the sum of its proper divisors (105382606517499).

201022101220101 is a wasteful number, since it uses less digits than its factorization.

201022101220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99409.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201022101220101 its reverse (101022101220102), we get a palindrome (302044202440203).

Subtracting from 201022101220101 its reverse (101022101220102), we obtain a palindrome (99999999999999).

The spelling of 201022101220101 in words is "two hundred one trillion, twenty-two billion, one hundred one million, two hundred twenty thousand, one hundred one".