122121222203220 has 96 divisors (see below), whose sum is σ = 362509448641536. Its totient is φ = 30663393177600.

The previous prime is 122121222203131. The next prime is 122121222203269. The reversal of 122121222203220 is 22302222121221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 887182141 + ... + 887319780.

It is an arithmetic number, because the mean of its divisors is an integer number (3776140090016).

Almost surely, 2^{122121222203220} is an apocalyptic number.

122121222203220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122121222203220 is an abundant number, since it is smaller than the sum of its proper divisors (240388226438316).

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

122121222203220 is a wasteful number, since it uses less digits than its factorization.

122121222203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774502001 (or 1774501999 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 122121222203220 its reverse (22302222121221), we get a palindrome (144423444324441).

The spelling of 122121222203220 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred three thousand, two hundred twenty".