120221211220100 has 72 divisors (see below), whose sum is σ = 261032879243136. Its totient is φ = 48060314640000.

The previous prime is 120221211220093. The next prime is 120221211220127. The reversal of 120221211220100 is 1022112122021.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2161019285 + ... + 2161074915.

Almost surely, 2^{120221211220100} is an apocalyptic number.

120221211220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120221211220100 is an abundant number, since it is smaller than the sum of its proper divisors (140811668023036).

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

120221211220100 is a wasteful number, since it uses less digits than its factorization.

120221211220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67917 (or 67910 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120221211220100 its reverse (1022112122021), we get a palindrome (121243323342121).

The spelling of 120221211220100 in words is "one hundred twenty trillion, two hundred twenty-one billion, two hundred eleven million, two hundred twenty thousand, one hundred".