2265542246121 has 32 divisors (see below), whose sum is σ = 3766764819456. Its totient is φ = 1176696120000.

The previous prime is 2265542246117. The next prime is 2265542246309. The reversal of 2265542246121 is 1216422455622.

It is a happy number.

It is not a de Polignac number, because 2265542246121 - 2² = 2265542246117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2265542246921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 437611 + ... + 2173151.

It is an arithmetic number, because the mean of its divisors is an integer number (117711400608).

Almost surely, 2^{2265542246121} is an apocalyptic number.

2265542246121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2265542246121 is a deficient number, since it is larger than the sum of its proper divisors (1501222573335).

2265542246121 is a wasteful number, since it uses less digits than its factorization.

2265542246121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741213.

The product of its digits is 460800, while the sum is 42.

The spelling of 2265542246121 in words is "two trillion, two hundred sixty-five billion, five hundred forty-two million, two hundred forty-six thousand, one hundred twenty-one".