211022020220 has 24 divisors (see below), whose sum is σ = 483432265008. Its totient is φ = 76735280000.

The previous prime is 211022020219. The next prime is 211022020259. The reversal of 211022020220 is 22020220112.

It is a junction number, because it is equal to n+sod(n) for n = 211022020195 and 211022020204.

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, 479595281 + ... + 479595720.

It is an arithmetic number, because the mean of its divisors is an integer number (20143011042).

Almost surely, 2^211022020220 is an apocalyptic number.

211022020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211022020220 is an abundant number, since it is smaller than the sum of its proper divisors (272410244788).

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

211022020220 is a wasteful number, since it uses less digits than its factorization.

211022020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959191021 (or 959191019 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 211022020220 its reverse (22020220112), we get a palindrome (233042240332).

The spelling of 211022020220 in words is "two hundred eleven billion, twenty-two million, twenty thousand, two hundred twenty".