102011020212 has 24 divisors (see below), whose sum is σ = 238082356512. Its totient is φ = 33995581600.

The previous prime is 102011020211. The next prime is 102011020213. The reversal of 102011020212 is 212020110201.

It is an interprime number because it is at equal distance from previous prime (102011020211) and next prime (102011020213).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011020211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958839 + ... + 1059902.

It is an arithmetic number, because the mean of its divisors is an integer number (9920098188).

Almost surely, 2^102011020212 is an apocalyptic number.

102011020212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102011020212 is an abundant number, since it is smaller than the sum of its proper divisors (136071336300).

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

102011020212 is a wasteful number, since it uses less digits than its factorization.

102011020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022959 (or 2022957 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102011020212 its reverse (212020110201), we get a palindrome (314031130413).

The spelling of 102011020212 in words is "one hundred two billion, eleven million, twenty thousand, two hundred twelve".