121120220022200 has 96 divisors (see below), whose sum is σ = 321836010656160. Its totient is φ = 41526637977600.

The previous prime is 121120220022143. The next prime is 121120220022209. The reversal of 121120220022200 is 2220022021121.

It is a happy number.

It is a super-2 number, since 2×121120220022200² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120220022209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306908204 + ... + 307302596.

It is an arithmetic number, because the mean of its divisors is an integer number (3352458444335).

Almost surely, 2^{121120220022200} is an apocalyptic number.

121120220022200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121120220022200 is an abundant number, since it is smaller than the sum of its proper divisors (200715790633960).

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

121120220022200 is a wasteful number, since it uses less digits than its factorization.

121120220022200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613777 (or 613768 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121120220022200 its reverse (2220022021121), we get a palindrome (123340242043321).

The spelling of 121120220022200 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred twenty million, twenty-two thousand, two hundred".