122120201200020 has 96 divisors (see below), whose sum is σ = 362052763003008. Its totient is φ = 30649582620672.

The previous prime is 122120201199973. The next prime is 122120201200027. The reversal of 122120201200020 is 20002102021221.

It is a super-2 number, since 2×122120201200020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120201200027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230574747 + ... + 231103773.

It is an arithmetic number, because the mean of its divisors is an integer number (3771382947948).

Almost surely, 2^{122120201200020} is an apocalyptic number.

122120201200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122120201200020 is an abundant number, since it is smaller than the sum of its proper divisors (239932561802988).

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

122120201200020 is a wasteful number, since it uses less digits than its factorization.

122120201200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755369 (or 755367 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122120201200020 its reverse (20002102021221), we get a palindrome (142122303221241).

The spelling of 122120201200020 in words is "one hundred twenty-two trillion, one hundred twenty billion, two hundred one million, two hundred thousand, twenty".