22100121001212 has 24 divisors (see below), whose sum is σ = 51567542288976. Its totient is φ = 7366622245248.

The previous prime is 22100121001183. The next prime is 22100121001241. The reversal of 22100121001212 is 21210012100122.

It is an interprime number because it is at equal distance from previous prime (22100121001183) and next prime (22100121001241).

It is a super-3 number, since 3×22100121001212³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22100121001191 and 22100121001200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9503433 + ... + 11598080.

It is an arithmetic number, because the mean of its divisors is an integer number (2148647595374).

Almost surely, 2^{22100121001212} is an apocalyptic number.

It is an amenable number.

22100121001212 is an abundant number, since it is smaller than the sum of its proper divisors (29467421287764).

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

22100121001212 is a wasteful number, since it uses less digits than its factorization.

22100121001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21188797 (or 21188795 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22100121001212 its reverse (21210012100122), we get a palindrome (43310133101334).

The spelling of 22100121001212 in words is "twenty-two trillion, one hundred billion, one hundred twenty-one million, one thousand, two hundred twelve".