1022001212 has 6 divisors (see below), whose sum is σ = 1788502128. Its totient is φ = 511000604.

The previous prime is 1022001187. The next prime is 1022001289. The reversal of 1022001212 is 2121002201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1022001193 and 1022001202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127750148 + ... + 127750155.

It is an arithmetic number, because the mean of its divisors is an integer number (298083688).

Almost surely, 2^1022001212 is an apocalyptic number.

It is an amenable number.

1022001212 is a deficient number, since it is larger than the sum of its proper divisors (766500916).

1022001212 is a wasteful number, since it uses less digits than its factorization.

1022001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255500307 (or 255500305 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1022001212 is about 31968.7536823067. The cubic root of 1022001212 is about 1007.2806015333.

Adding to 1022001212 its reverse (2121002201), we get a palindrome (3143003413).

The spelling of 1022001212 in words is "one billion, twenty-two million, one thousand, two hundred twelve".