211122212022040 has 128 divisors (see below), whose sum is σ = 540864319705920. Its totient is φ = 73486039244800.

The previous prime is 211122212021957. The next prime is 211122212022041. The reversal of 211122212022040 is 40220212221112.

It is a super-2 number, since 2×211122212022040² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211122212022041) 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, 109449589 + ... + 111361828.

Almost surely, 2^{211122212022040} is an apocalyptic number.

211122212022040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211122212022040 is an abundant number, since it is smaller than the sum of its proper divisors (329742107683880).

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

211122212022040 is a wasteful number, since it uses less digits than its factorization.

211122212022040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220811533 (or 220811529 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 211122212022040 its reverse (40220212221112), we get a palindrome (251342424243152).

The spelling of 211122212022040 in words is "two hundred eleven trillion, one hundred twenty-two billion, two hundred twelve million, twenty-two thousand, forty".