210121100313222 has 48 divisors (see below), whose sum is σ = 489650649203952. Its totient is φ = 59936664312000.

The previous prime is 210121100313211. The next prime is 210121100313227. The reversal of 210121100313222 is 222313001121012.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210121100313227) 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, 582770529 + ... + 583130972.

It is an arithmetic number, because the mean of its divisors is an integer number (10201055191749).

Almost surely, 2^{210121100313222} is an apocalyptic number.

210121100313222 is an abundant number, since it is smaller than the sum of its proper divisors (279529548890730).

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

210121100313222 is a wasteful number, since it uses less digits than its factorization.

210121100313222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165902133 (or 1165902126 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 210121100313222 its reverse (222313001121012), we get a palindrome (432434101434234).

The spelling of 210121100313222 in words is "two hundred ten trillion, one hundred twenty-one billion, one hundred million, three hundred thirteen thousand, two hundred twenty-two".