20212222101 has 16 divisors (see below), whose sum is σ = 27765358464. Its totient is φ = 13069249344.

The previous prime is 20212222087. The next prime is 20212222123. The reversal of 20212222101 is 10122221202.

It is not a de Polignac number, because 20212222101 - 2²² = 20208027797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212222181) 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, 252025 + ... + 322398.

It is an arithmetic number, because the mean of its divisors is an integer number (1735334904).

Almost surely, 2^20212222101 is an apocalyptic number.

It is an amenable number.

20212222101 is a deficient number, since it is larger than the sum of its proper divisors (7553136363).

20212222101 is a wasteful number, since it uses less digits than its factorization.

20212222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574780.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20212222101 its reverse (10122221202), we get a palindrome (30334443303).

The spelling of 20212222101 in words is "twenty billion, two hundred twelve million, two hundred twenty-two thousand, one hundred one".