211022012211020 has 24 divisors (see below), whose sum is σ = 443149050937824. Its totient is φ = 84408266733056.

The previous prime is 211022012211019. The next prime is 211022012211113. The reversal of 211022012211020 is 20112210220112.

It is a self number, because there is not a number n which added to its sum of digits gives 211022012211020.

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, 30411512 + ... + 36700191.

It is an arithmetic number, because the mean of its divisors is an integer number (18464543789076).

Almost surely, 2^{211022012211020} is an apocalyptic number.

211022012211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211022012211020 is an abundant number, since it is smaller than the sum of its proper divisors (232127038726804).

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

211022012211020 is a wasteful number, since it uses less digits than its factorization.

211022012211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67268929 (or 67268927 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211022012211020 its reverse (20112210220112), we get a palindrome (231134222431132).

The spelling of 211022012211020 in words is "two hundred eleven trillion, twenty-two billion, twelve million, two hundred eleven thousand, twenty".