1201121222210 has 128 divisors (see below), whose sum is σ = 2716080159744. Its totient is φ = 372284789760.

The previous prime is 1201121222177. The next prime is 1201121222219. The reversal of 1201121222210 is 122221211021.

It is not an unprimeable number, because it can be changed into a prime (1201121222219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26841755 + ... + 26886465.

It is an arithmetic number, because the mean of its divisors is an integer number (21219376248).

Almost surely, 2^{1201121222210} is an apocalyptic number.

1201121222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201121222210 is an abundant number, since it is smaller than the sum of its proper divisors (1514958937534).

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

1201121222210 is a wasteful number, since it uses less digits than its factorization.

1201121222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45348.

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

Adding to 1201121222210 its reverse (122221211021), we get a palindrome (1323342433231).

The spelling of 1201121222210 in words is "one trillion, two hundred one billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred ten".