1211102022 has 64 divisors (see below), whose sum is σ = 2640496320. Its totient is φ = 368116224.

The previous prime is 1211101999. The next prime is 1211102033. The reversal of 1211102022 is 2202011121.

It is a junction number, because it is equal to n+sod(n) for n = 1211101989 and 1211102007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4133308 + ... + 4133600.

It is an arithmetic number, because the mean of its divisors is an integer number (41257755).

Almost surely, 2^1211102022 is an apocalyptic number.

1211102022 is an abundant number, since it is smaller than the sum of its proper divisors (1429394298).

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

1211102022 is a wasteful number, since it uses less digits than its factorization.

1211102022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777.

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

The square root of 1211102022 is about 34800.8911092805. The cubic root of 1211102022 is about 1065.9256419403.

Adding to 1211102022 its reverse (2202011121), we get a palindrome (3413113143).

Subtracting 1211102022 from its reverse (2202011121), we obtain a palindrome (990909099).

The spelling of 1211102022 in words is "one billion, two hundred eleven million, one hundred two thousand, twenty-two".