22212001211020 has 48 divisors (see below), whose sum is σ = 46720681636608. Its totient is φ = 8870427221760.

The previous prime is 22212001210999. The next prime is 22212001211033. The reversal of 22212001211020 is 2011210021222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22212001210985 and 22212001211003.

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, 99176965 + ... + 99400675.

It is an arithmetic number, because the mean of its divisors is an integer number (973347534096).

Almost surely, 2^{22212001211020} is an apocalyptic number.

22212001211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212001211020 is an abundant number, since it is smaller than the sum of its proper divisors (24508680425588).

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

22212001211020 is a wasteful number, since it uses less digits than its factorization.

22212001211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231730 (or 231728 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22212001211020 its reverse (2011210021222), we get a palindrome (24223211232242).

The spelling of 22212001211020 in words is "twenty-two trillion, two hundred twelve billion, one million, two hundred eleven thousand, twenty".