212202121102220 has 24 divisors (see below), whose sum is σ = 445852862625408. Its totient is φ = 84837342096000.

The previous prime is 212202121102189. The next prime is 212202121102247. The reversal of 212202121102220 is 22201121202212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 212202121102192 and 212202121102201.

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, 2719106561 + ... + 2719184600.

It is an arithmetic number, because the mean of its divisors is an integer number (18577202609392).

Almost surely, 2^{212202121102220} is an apocalyptic number.

212202121102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212202121102220 is an abundant number, since it is smaller than the sum of its proper divisors (233650741523188).

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

212202121102220 is a wasteful number, since it uses less digits than its factorization.

212202121102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5438293121 (or 5438293119 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212202121102220 its reverse (22201121202212), we get a palindrome (234403242304432).

The spelling of 212202121102220 in words is "two hundred twelve trillion, two hundred two billion, one hundred twenty-one million, one hundred two thousand, two hundred twenty".