210021212012202 has 48 divisors (see below), whose sum is σ = 463481241342912. Its totient is φ = 68716771865280.

The previous prime is 210021212012201. The next prime is 210021212012219. The reversal of 210021212012202 is 202210212120012.

It is a happy number.

210021212012202 is a `hidden beast` number, since 210 + 0 + 21 + 212 + 0 + 1 + 220 + 2 = 666.

It is a super-3 number, since 3×210021212012202³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (210021212012201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 309531118 + ... + 310208889.

It is an arithmetic number, because the mean of its divisors is an integer number (9655859194644).

Almost surely, 2^{210021212012202} is an apocalyptic number.

210021212012202 is an abundant number, since it is smaller than the sum of its proper divisors (253460029330710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210021212012202 is a wasteful number, since it uses less digits than its factorization.

210021212012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619740363 (or 619740360 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210021212012202 its reverse (202210212120012), we get a palindrome (412231424132214).

The spelling of 210021212012202 in words is "two hundred ten trillion, twenty-one billion, two hundred twelve million, twelve thousand, two hundred two".