202120240102 has 16 divisors (see below), whose sum is σ = 330970204224. Its totient is φ = 91809505000.

The previous prime is 202120240013. The next prime is 202120240111. The reversal of 202120240102 is 201042021202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3133924 + ... + 3197767.

It is an arithmetic number, because the mean of its divisors is an integer number (20685637764).

Almost surely, 2^202120240102 is an apocalyptic number.

202120240102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

202120240102 is a deficient number, since it is larger than the sum of its proper divisors (128849964122).

202120240102 is a wasteful number, since it uses less digits than its factorization.

202120240102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6333155.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 202120240102 its reverse (201042021202), we get a palindrome (403162261304).

The spelling of 202120240102 in words is "two hundred two billion, one hundred twenty million, two hundred forty thousand, one hundred two".