120221111020100 has 18 divisors (see below), whose sum is σ = 260879810913834. Its totient is φ = 48088444408000.

The previous prime is 120221111020091. The next prime is 120221111020111. The reversal of 120221111020100 is 1020111122021.

It can be written as a sum of positive squares in 3 ways, for example, as 11375833804864 + 108845277215236 = 3372808^2 + 10432894^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 601105555001 + ... + 601105555200.

Almost surely, 2^{120221111020100} is an apocalyptic number.

120221111020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120221111020100 is an abundant number, since it is smaller than the sum of its proper divisors (140658699893734).

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

120221111020100 is a wasteful number, since it uses less digits than its factorization.

120221111020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202211110215 (or 1202211110208 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 120221111020100 its reverse (1020111122021), we get a palindrome (121241222142121).

The spelling of 120221111020100 in words is "one hundred twenty trillion, two hundred twenty-one billion, one hundred eleven million, twenty thousand, one hundred".