1021001212 has 24 divisors (see below), whose sum is σ = 2227639680. Its totient is φ = 397792560.

The previous prime is 1021001207. The next prime is 1021001237. The reversal of 1021001212 is 2121001201.

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, 1657162 + ... + 1657777.

It is an arithmetic number, because the mean of its divisors is an integer number (92818320).

Almost surely, 2^1021001212 is an apocalyptic number.

It is an amenable number.

1021001212 is an abundant number, since it is smaller than the sum of its proper divisors (1206638468).

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

1021001212 is a wasteful number, since it uses less digits than its factorization.

1021001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314961 (or 3314959 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1021001212 is about 31953.1095826369. The cubic root of 1021001212 is about 1006.9519622256.

Adding to 1021001212 its reverse (2121001201), we get a palindrome (3142002413).

The spelling of 1021001212 in words is "one billion, twenty-one million, one thousand, two hundred twelve".