20212101022 has 4 divisors (see below), whose sum is σ = 30318151536. Its totient is φ = 10106050510.

The previous prime is 20212101017. The next prime is 20212101079. The reversal of 20212101022 is 22010121202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20212100993 and 20212101011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5053025254 + ... + 5053025257.

It is an arithmetic number, because the mean of its divisors is an integer number (7579537884).

Almost surely, 2^20212101022 is an apocalyptic number.

20212101022 is a deficient number, since it is larger than the sum of its proper divisors (10106050514).

20212101022 is a wasteful number, since it uses less digits than its factorization.

20212101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10106050513.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20212101022 its reverse (22010121202), we get a palindrome (42222222224).

The spelling of 20212101022 in words is "twenty billion, two hundred twelve million, one hundred one thousand, twenty-two".