201021210022 has 16 divisors (see below), whose sum is σ = 318850326144. Its totient is φ = 94895928000.

The previous prime is 201021210001. The next prime is 201021210043. The reversal of 201021210022 is 220012120102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201021210001) and next prime (201021210043).

It is a junction number, because it is equal to n+sod(n) for n = 201021209984 and 201021210011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39537429 + ... + 39542512.

It is an arithmetic number, because the mean of its divisors is an integer number (19928145384).

Almost surely, 2^201021210022 is an apocalyptic number.

201021210022 is a deficient number, since it is larger than the sum of its proper divisors (117829116122).

201021210022 is a wasteful number, since it uses less digits than its factorization.

201021210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79080015.

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

Adding to 201021210022 its reverse (220012120102), we get a palindrome (421033330124).

The spelling of 201021210022 in words is "two hundred one billion, twenty-one million, two hundred ten thousand, twenty-two".