212303123202198 has 64 divisors (see below), whose sum is σ = 514953581414400. Its totient is φ = 56962766364672.

The previous prime is 212303123202193. The next prime is 212303123202199. The reversal of 212303123202198 is 891202321303212.

It is a super-2 number, since 2×212303123202198² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212303123202193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330796686 + ... + 331437857.

It is an arithmetic number, because the mean of its divisors is an integer number (8046149709600).

Almost surely, 2^{212303123202198} is an apocalyptic number.

212303123202198 is an abundant number, since it is smaller than the sum of its proper divisors (302650458212202).

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

212303123202198 is a wasteful number, since it uses less digits than its factorization.

212303123202198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662235021.

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 212303123202198 in words is "two hundred twelve trillion, three hundred three billion, one hundred twenty-three million, two hundred two thousand, one hundred ninety-eight".