102120220000 has 60 divisors (see below), whose sum is σ = 251231108436. Its totient is φ = 40848080000.

The previous prime is 102120219989. The next prime is 102120220003. The reversal of 102120220000 is 22021201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120220003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2533006 + ... + 2573005.

Almost surely, 2^102120220000 is an apocalyptic number.

102120220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102120220000 is an abundant number, since it is smaller than the sum of its proper divisors (149110888436).

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

102120220000 is an frugal number, since it uses more digits than its factorization.

102120220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106041 (or 5106018 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 102120220000 its reverse (22021201), we get a palindrome (102142241201).

The spelling of 102120220000 in words is "one hundred two billion, one hundred twenty million, two hundred twenty thousand".