1211012022 has 16 divisors (see below), whose sum is σ = 2642208192. Its totient is φ = 366973320.

The previous prime is 1211012021. The next prime is 1211012029. The reversal of 1211012022 is 2202101121.

It is a junction number, because it is equal to n+sod(n) for n = 1211011989 and 1211012007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211012021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9174268 + ... + 9174399.

It is an arithmetic number, because the mean of its divisors is an integer number (165138012).

Almost surely, 2^1211012022 is an apocalyptic number.

1211012022 is an abundant number, since it is smaller than the sum of its proper divisors (1431196170).

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

1211012022 is a wasteful number, since it uses less digits than its factorization.

1211012022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18348683.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1211012022 is about 34799.5980149197. The cubic root of 1211012022 is about 1065.8992374254.

Adding to 1211012022 its reverse (2202101121), we get a palindrome (3413113143).

The spelling of 1211012022 in words is "one billion, two hundred eleven million, twelve thousand, twenty-two".