1021022101212 has 12 divisors (see below), whose sum is σ = 2382384902856. Its totient is φ = 340340700400.

The previous prime is 1021022101201. The next prime is 1021022101223. The reversal of 1021022101212 is 2121012201201.

It is an interprime number because it is at equal distance from previous prime (1021022101201) and next prime (1021022101223).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1021022101212² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021022101191 and 1021022101200.

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, 42542587539 + ... + 42542587562.

It is an arithmetic number, because the mean of its divisors is an integer number (198532075238).

Almost surely, 2^{1021022101212} is an apocalyptic number.

1021022101212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021022101212 is an abundant number, since it is smaller than the sum of its proper divisors (1361362801644).

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

1021022101212 is a wasteful number, since it uses less digits than its factorization.

1021022101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85085175108 (or 85085175106 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1021022101212 its reverse (2121012201201), we get a palindrome (3142034302413).

The spelling of 1021022101212 in words is "one trillion, twenty-one billion, twenty-two million, one hundred one thousand, two hundred twelve".