2111001221010 has 64 divisors (see below), whose sum is σ = 5534870050944. Its totient is φ = 511027776000.

The previous prime is 2111001220969. The next prime is 2111001221023. The reversal of 2111001221010 is 101221001112.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4331419 + ... + 4794078.

It is an arithmetic number, because the mean of its divisors is an integer number (86482344546).

Almost surely, 2^{2111001221010} is an apocalyptic number.

2111001221010 is an abundant number, since it is smaller than the sum of its proper divisors (3423868829934).

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

2111001221010 is a wasteful number, since it uses less digits than its factorization.

2111001221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9126219.

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

Adding to 2111001221010 its reverse (101221001112), we get a palindrome (2212222222122).

The spelling of 2111001221010 in words is "two trillion, one hundred eleven billion, one million, two hundred twenty-one thousand, ten".