102001020212 has 48 divisors (see below), whose sum is σ = 231257389440. Its totient is φ = 38228257152.

The previous prime is 102001020181. The next prime is 102001020263. The reversal of 102001020212 is 212020100201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102001020193 and 102001020202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7367363 + ... + 7381194.

It is an arithmetic number, because the mean of its divisors is an integer number (4817862280).

Almost surely, 2^102001020212 is an apocalyptic number.

It is an amenable number.

102001020212 is an abundant number, since it is smaller than the sum of its proper divisors (129256369228).

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

102001020212 is a wasteful number, since it uses less digits than its factorization.

102001020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14748600 (or 14748598 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102001020212 its reverse (212020100201), we get a palindrome (314021120413).

The spelling of 102001020212 in words is "one hundred two billion, one million, twenty thousand, two hundred twelve".