102001221212120 has 32 divisors (see below), whose sum is σ = 229503404250720. Its totient is φ = 40800371769600.

The previous prime is 102001221212083. The next prime is 102001221212131. The reversal of 102001221212120 is 21212122100201.

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, 11262845 + ... + 18189395.

It is an arithmetic number, because the mean of its divisors is an integer number (7171981382835).

Almost surely, 2^{102001221212120} is an apocalyptic number.

102001221212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102001221212120 is an abundant number, since it is smaller than the sum of its proper divisors (127502183038600).

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

102001221212120 is a wasteful number, since it uses less digits than its factorization.

102001221212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7294715 (or 7294711 counting only the distinct ones).

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

Adding to 102001221212120 its reverse (21212122100201), we get a palindrome (123213343312321).

The spelling of 102001221212120 in words is "one hundred two trillion, one billion, two hundred twenty-one million, two hundred twelve thousand, one hundred twenty".