2221011121002 has 64 divisors (see below), whose sum is σ = 4824529274880. Its totient is φ = 679372171776.

The previous prime is 2221011120943. The next prime is 2221011121009. The reversal of 2221011121002 is 2001211101222.

It is a super-2 number, since 2×2221011121002² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2221011121009) 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, 1616988 + ... + 2656439.

It is an arithmetic number, because the mean of its divisors is an integer number (75383269920).

Almost surely, 2^{2221011121002} is an apocalyptic number.

2221011121002 is an abundant number, since it is smaller than the sum of its proper divisors (2603518153878).

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

2221011121002 is a wasteful number, since it uses less digits than its factorization.

2221011121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273595.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2221011121002 its reverse (2001211101222), we get a palindrome (4222222222224).

The spelling of 2221011121002 in words is "two trillion, two hundred twenty-one billion, eleven million, one hundred twenty-one thousand, two".