1100211021021 has 64 divisors (see below), whose sum is σ = 1700384514048. Its totient is φ = 619807254528.

The previous prime is 1100211021017. The next prime is 1100211021023. The reversal of 1100211021021 is 1201201120011.

It is not a de Polignac number, because 1100211021021 - 2² = 1100211021017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100211020988 and 1100211021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100211021023) 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, 684635800 + ... + 684637406.

It is an arithmetic number, because the mean of its divisors is an integer number (26568508032).

Almost surely, 2^{1100211021021} is an apocalyptic number.

It is an amenable number.

1100211021021 is a deficient number, since it is larger than the sum of its proper divisors (600173493027).

1100211021021 is a wasteful number, since it uses less digits than its factorization.

1100211021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1100211021021 its reverse (1201201120011), we get a palindrome (2301412141032).

The spelling of 1100211021021 in words is "one trillion, one hundred billion, two hundred eleven million, twenty-one thousand, twenty-one".