210022012001021 has 16 divisors (see below), whose sum is σ = 229928758517760. Its totient is φ = 190250929779120.

The previous prime is 210022012001017. The next prime is 210022012001029. The reversal of 210022012001021 is 120100210220012.

It is a cyclic number.

It is not a de Polignac number, because 210022012001021 - 2² = 210022012001017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210022012000987 and 210022012001005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210022012001029) 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, 176158916 + ... + 177347138.

It is an arithmetic number, because the mean of its divisors is an integer number (14370547407360).

Almost surely, 2^{210022012001021} is an apocalyptic number.

It is an amenable number.

210022012001021 is a deficient number, since it is larger than the sum of its proper divisors (19906746516739).

210022012001021 is a wasteful number, since it uses less digits than its factorization.

210022012001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245296.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210022012001021 its reverse (120100210220012), we get a palindrome (330122222221033).

The spelling of 210022012001021 in words is "two hundred ten trillion, twenty-two billion, twelve million, one thousand, twenty-one".