212010111221020 has 48 divisors (see below), whose sum is σ = 526369931317440. Its totient is φ = 70182657506304.

The previous prime is 212010111220987. The next prime is 212010111221033. The reversal of 212010111221020 is 20122111010212.

212010111221020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212010111220985 and 212010111221003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26109615549 + ... + 26109623668.

It is an arithmetic number, because the mean of its divisors is an integer number (10966040235780).

Almost surely, 2^{212010111221020} is an apocalyptic number.

212010111221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212010111221020 is an abundant number, since it is smaller than the sum of its proper divisors (314359820096420).

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

212010111221020 is a wasteful number, since it uses less digits than its factorization.

212010111221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52219239262 (or 52219239260 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212010111221020 its reverse (20122111010212), we get a palindrome (232132222231232).

The spelling of 212010111221020 in words is "two hundred twelve trillion, ten billion, one hundred eleven million, two hundred twenty-one thousand, twenty".