101102222221 has 32 divisors (see below), whose sum is σ = 135831967488. Its totient is φ = 72674634240.

The previous prime is 101102222209. The next prime is 101102222269. The reversal of 101102222221 is 122222201101.

It is a happy number.

It is not a de Polignac number, because 101102222221 - 2⁵ = 101102222189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101102222195 and 101102222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101102222281) 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, 1583305 + ... + 1645921.

It is an arithmetic number, because the mean of its divisors is an integer number (4244748984).

Almost surely, 2^101102222221 is an apocalyptic number.

101102222221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101102222221 is a deficient number, since it is larger than the sum of its proper divisors (34729745267).

101102222221 is a wasteful number, since it uses less digits than its factorization.

101102222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64261.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 101102222221 its reverse (122222201101), we get a palindrome (223324423322).

It can be divided in two parts, 101102 and 222221, that added together give a palindrome (323323).

The spelling of 101102222221 in words is "one hundred one billion, one hundred two million, two hundred twenty-two thousand, two hundred twenty-one".