1021102021212 has 96 divisors (see below), whose sum is σ = 2932996684800. Its totient is φ = 269246426112.

The previous prime is 1021102021207. The next prime is 1021102021213. The reversal of 1021102021212 is 2121202011201.

It is a junction number, because it is equal to n+sod(n) for n = 1021102021191 and 1021102021200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021102021213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5376489 + ... + 5563167.

It is an arithmetic number, because the mean of its divisors is an integer number (30552048800).

Almost surely, 2^{1021102021212} is an apocalyptic number.

1021102021212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021102021212 is an abundant number, since it is smaller than the sum of its proper divisors (1911894663588).

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

1021102021212 is a wasteful number, since it uses less digits than its factorization.

1021102021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191715 (or 191713 counting only the distinct ones).

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

Adding to 1021102021212 its reverse (2121202011201), we get a palindrome (3142304032413).

The spelling of 1021102021212 in words is "one trillion, twenty-one billion, one hundred two million, twenty-one thousand, two hundred twelve".