1201121100222 has 32 divisors (see below), whose sum is σ = 2554193088000. Its totient is φ = 375245635968.

The previous prime is 1201121100199. The next prime is 1201121100251. The reversal of 1201121100222 is 2220011211021.

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, 24610972 + ... + 24659727.

It is an arithmetic number, because the mean of its divisors is an integer number (79818534000).

Almost surely, 2^{1201121100222} is an apocalyptic number.

1201121100222 is an abundant number, since it is smaller than the sum of its proper divisors (1353071987778).

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

1201121100222 is a wasteful number, since it uses less digits than its factorization.

1201121100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49270960.

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

Adding to 1201121100222 its reverse (2220011211021), we get a palindrome (3421132311243).

The spelling of 1201121100222 in words is "one trillion, two hundred one billion, one hundred twenty-one million, one hundred thousand, two hundred twenty-two".