2001101015254 has 32 divisors (see below), whose sum is σ = 3447726768000. Its totient is φ = 861504589440.

The previous prime is 2001101015233. The next prime is 2001101015257. The reversal of 2001101015254 is 4525101011002.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001101015257) 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, 1101309 + ... + 2283655.

It is an arithmetic number, because the mean of its divisors is an integer number (107741461500).

Almost surely, 2^{2001101015254} is an apocalyptic number.

2001101015254 is a deficient number, since it is larger than the sum of its proper divisors (1446625752746).

2001101015254 is a wasteful number, since it uses less digits than its factorization.

2001101015254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186428.

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 2001101015254 its reverse (4525101011002), we get a palindrome (6526202026256).

The spelling of 2001101015254 in words is "two trillion, one billion, one hundred one million, fifteen thousand, two hundred fifty-four".