1540022223101 has 16 divisors (see below), whose sum is σ = 1569947984496. Its totient is φ = 1510342557696.

The previous prime is 1540022223079. The next prime is 1540022223119. The reversal of 1540022223101 is 1013222200451.

It can be written as a sum of positive squares in 8 ways, for example, as 260349960025 + 1279672263076 = 510245^2 + 1131226^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1540022223101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540022223121) 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, 31154261 + ... + 31203653.

It is an arithmetic number, because the mean of its divisors is an integer number (98121749031).

Almost surely, 2^{1540022223101} is an apocalyptic number.

It is an amenable number.

1540022223101 is a deficient number, since it is larger than the sum of its proper divisors (29925761395).

1540022223101 is a wasteful number, since it uses less digits than its factorization.

1540022223101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51872.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 1540022223101 its reverse (1013222200451), we get a palindrome (2553244423552).

The spelling of 1540022223101 in words is "one trillion, five hundred forty billion, twenty-two million, two hundred twenty-three thousand, one hundred one".