1221101422410 has 32 divisors (see below), whose sum is σ = 2953719355392. Its totient is φ = 323063052480.

The previous prime is 1221101422391. The next prime is 1221101422417. The reversal of 1221101422410 is 142241011221.

It is not an unprimeable number, because it can be changed into a prime (1221101422417) 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, 160245721 + ... + 160253340.

It is an arithmetic number, because the mean of its divisors is an integer number (92303729856).

Almost surely, 2^{1221101422410} is an apocalyptic number.

1221101422410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221101422410 is an abundant number, since it is smaller than the sum of its proper divisors (1732617932982).

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

1221101422410 is a wasteful number, since it uses less digits than its factorization.

1221101422410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320499198.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 1221101422410 its reverse (142241011221), we get a palindrome (1363342433631).

The spelling of 1221101422410 in words is "one trillion, two hundred twenty-one billion, one hundred one million, four hundred twenty-two thousand, four hundred ten".