120202021002100 has 18 divisors (see below), whose sum is σ = 260838385574774. Its totient is φ = 48080808400800.

The previous prime is 120202021002031. The next prime is 120202021002127. The reversal of 120202021002100 is 1200120202021.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 28617235842064 + 91584785160036 = 5349508^2 + 9569994^2 .

It is a congruent number.

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, 601010104911 + ... + 601010105110.

Almost surely, 2^{120202021002100} is an apocalyptic number.

120202021002100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120202021002100 is an abundant number, since it is smaller than the sum of its proper divisors (140636364572674).

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

120202021002100 is a wasteful number, since it uses less digits than its factorization.

120202021002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202020210035 (or 1202020210028 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 120202021002100 its reverse (1200120202021), we get a palindrome (121402141204121).

The spelling of 120202021002100 in words is "one hundred twenty trillion, two hundred two billion, twenty-one million, two thousand, one hundred".