211220121022112 has 192 divisors, whose sum is σ = 458549185328640. Its totient is φ = 95416073625600.

The previous prime is 211220121022081. The next prime is 211220121022139.

211220121022112 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×211220121022112² (a number of 29 digits) contains 22 as substring.

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, 357745898 + ... + 358335830.

It is an arithmetic number, because the mean of its divisors is an integer number (2388277006920).

Almost surely, 2^{211220121022112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211220121022112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229274592664320).

211220121022112 is an abundant number, since it is smaller than the sum of its proper divisors (247329064306528).

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

211220121022112 is a wasteful number, since it uses less digits than its factorization.

211220121022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590327 (or 590319 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The spelling of 211220121022112 in words is "two hundred eleven trillion, two hundred twenty billion, one hundred twenty-one million, twenty-two thousand, one hundred twelve".