1201212222122 has 32 divisors (see below), whose sum is σ = 1970887814784. Its totient is φ = 544543070400.

The previous prime is 1201212222121. The next prime is 1201212222187. The reversal of 1201212222122 is 2212222121021.

It is a junction number, because it is equal to n+sod(n) for n = 1201212222094 and 1201212222103.

It is not an unprimeable number, because it can be changed into a prime (1201212222121) 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, 33538328 + ... + 33574124.

It is an arithmetic number, because the mean of its divisors is an integer number (61590244212).

Almost surely, 2^{1201212222122} is an apocalyptic number.

1201212222122 is a deficient number, since it is larger than the sum of its proper divisors (769675592662).

1201212222122 is a wasteful number, since it uses less digits than its factorization.

1201212222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39854.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1201212222122 its reverse (2212222121021), we get a palindrome (3413434343143).

The spelling of 1201212222122 in words is "one trillion, two hundred one billion, two hundred twelve million, two hundred twenty-two thousand, one hundred twenty-two".