1211022201122 has 16 divisors (see below), whose sum is σ = 1928544758712. Its totient is φ = 568364931840.

The previous prime is 1211022201113. The next prime is 1211022201199. The reversal of 1211022201122 is 2211022201121.

It can be written as a sum of positive squares in 4 ways, for example, as 846784603681 + 364237597441 = 920209^2 + 603521^2 .

It is a super-2 number, since 2×1211022201122² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1211022201122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47733029 + ... + 47758392.

Almost surely, 2^{1211022201122} is an apocalyptic number.

1211022201122 is a deficient number, since it is larger than the sum of its proper divisors (717522557590).

1211022201122 is a wasteful number, since it uses less digits than its factorization.

1211022201122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95491813.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1211022201122 its reverse (2211022201121), we get a palindrome (3422044402243).

Subtracting 1211022201122 from its reverse (2211022201121), we obtain a palindrome (999999999999).

The spelling of 1211022201122 in words is "one trillion, two hundred eleven billion, twenty-two million, two hundred one thousand, one hundred twenty-two".