1200011220122 has 32 divisors (see below), whose sum is σ = 2128897814400. Its totient is φ = 500121990720.

The previous prime is 1200011220113. The next prime is 1200011220127. The reversal of 1200011220122 is 2210221100021.

It is a super-2 number, since 2×1200011220122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200011220097 and 1200011220106.

It is not an unprimeable number, because it can be changed into a prime (1200011220127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14037398 + ... + 14122625.

It is an arithmetic number, because the mean of its divisors is an integer number (66528056700).

Almost surely, 2^{1200011220122} is an apocalyptic number.

1200011220122 is a deficient number, since it is larger than the sum of its proper divisors (928886594278).

1200011220122 is a wasteful number, since it uses less digits than its factorization.

1200011220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28160198.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1200011220122 its reverse (2210221100021), we get a palindrome (3410232320143).

The spelling of 1200011220122 in words is "one trillion, two hundred billion, eleven million, two hundred twenty thousand, one hundred twenty-two".