101221000212 has 24 divisors (see below), whose sum is σ = 239417710336. Its totient is φ = 33278136768.

The previous prime is 101221000163. The next prime is 101221000259. The reversal of 101221000212 is 212000122101.

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

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, 57773668 + ... + 57775419.

Almost surely, 2^101221000212 is an apocalyptic number.

101221000212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101221000212 is an abundant number, since it is smaller than the sum of its proper divisors (138196710124).

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

101221000212 is a wasteful number, since it uses less digits than its factorization.

101221000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115549167 (or 115549165 counting only the distinct ones).

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

Adding to 101221000212 its reverse (212000122101), we get a palindrome (313221122313).

The spelling of 101221000212 in words is "one hundred one billion, two hundred twenty-one million, two hundred twelve", and thus it is an aban number.