212210121110022 has 64 divisors (see below), whose sum is σ = 538985522995200. Its totient is φ = 60627055011840.

The previous prime is 212210121110017. The next prime is 212210121110041. The reversal of 212210121110022 is 220011121012212.

212210121110022 is a `hidden beast` number, since 212 + 210 + 1 + 211 + 10 + 0 + 22 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 212210121109977 and 212210121110004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15200379 + ... + 25602182.

It is an arithmetic number, because the mean of its divisors is an integer number (8421648796800).

Almost surely, 2^{212210121110022} is an apocalyptic number.

212210121110022 is an abundant number, since it is smaller than the sum of its proper divisors (326775401885178).

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

212210121110022 is a wasteful number, since it uses less digits than its factorization.

212210121110022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40816338 (or 40816332 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212210121110022 its reverse (220011121012212), we get a palindrome (432221242122234).

The spelling of 212210121110022 in words is "two hundred twelve trillion, two hundred ten billion, one hundred twenty-one million, one hundred ten thousand, twenty-two".