1022151212 has 6 divisors (see below), whose sum is σ = 1788764628. Its totient is φ = 511075604.

The previous prime is 1022151187. The next prime is 1022151239. The reversal of 1022151212 is 2121512201.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127768898 + ... + 127768905.

It is an arithmetic number, because the mean of its divisors is an integer number (298127438).

Almost surely, 2^1022151212 is an apocalyptic number.

It is an amenable number.

1022151212 is a deficient number, since it is larger than the sum of its proper divisors (766613416).

1022151212 is a wasteful number, since it uses less digits than its factorization.

1022151212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255537807 (or 255537805 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1022151212 is about 31971.0996370159. The cubic root of 1022151212 is about 1007.3298789370.

Adding to 1022151212 its reverse (2121512201), we get a palindrome (3143663413).

The spelling of 1022151212 in words is "one billion, twenty-two million, one hundred fifty-one thousand, two hundred twelve".