101021111212 has 24 divisors (see below), whose sum is σ = 202298991104. Its totient is φ = 43239740112.

The previous prime is 101021111203. The next prime is 101021111281. The reversal of 101021111212 is 212111120101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101021111192 and 101021111201.

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, 2270148 + ... + 2314219.

Almost surely, 2^101021111212 is an apocalyptic number.

It is an amenable number.

101021111212 is an abundant number, since it is smaller than the sum of its proper divisors (101277879892).

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

101021111212 is a wasteful number, since it uses less digits than its factorization.

101021111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585165 (or 4585163 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101021111212 its reverse (212111120101), we get a palindrome (313132231313).

The spelling of 101021111212 in words is "one hundred one billion, twenty-one million, one hundred eleven thousand, two hundred twelve".