1211002112022 has 32 divisors (see below), whose sum is σ = 2507557409280. Its totient is φ = 389431126560.

The previous prime is 1211002111999. The next prime is 1211002112057. The reversal of 1211002112022 is 2202112001121.

It is a super-2 number, since 2×1211002112022² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211002111992 and 1211002112010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2612688 + ... + 3041075.

It is an arithmetic number, because the mean of its divisors is an integer number (78361169040).

Almost surely, 2^{1211002112022} is an apocalyptic number.

1211002112022 is an abundant number, since it is smaller than the sum of its proper divisors (1296555297258).

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

1211002112022 is a wasteful number, since it uses less digits than its factorization.

1211002112022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5655028.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1211002112022 its reverse (2202112001121), we get a palindrome (3413114113143).

The spelling of 1211002112022 in words is "one trillion, two hundred eleven billion, two million, one hundred twelve thousand, twenty-two".