101220201212 has 12 divisors (see below), whose sum is σ = 190761148536. Its totient is φ = 46717015920.

The previous prime is 101220201179. The next prime is 101220201233. The reversal of 101220201212 is 212102022101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973271114 + ... + 973271217.

It is an arithmetic number, because the mean of its divisors is an integer number (15896762378).

Almost surely, 2^101220201212 is an apocalyptic number.

It is an amenable number.

101220201212 is a deficient number, since it is larger than the sum of its proper divisors (89540947324).

101220201212 is a wasteful number, since it uses less digits than its factorization.

101220201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946542348 (or 1946542346 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101220201212 its reverse (212102022101), we get a palindrome (313322223313).

The spelling of 101220201212 in words is "one hundred one billion, two hundred twenty million, two hundred one thousand, two hundred twelve".