1011221012002 has 16 divisors (see below), whose sum is σ = 1554417876312. Its totient is φ = 493091092480.

The previous prime is 1011221011993. The next prime is 1011221012147. The reversal of 1011221012002 is 2002101221101.

1011221012002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 305841074841 + 705379937161 = 553029^2 + 839869^2 .

It is a super-2 number, since 2×1011221012002² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2125903 + ... + 2557714.

Almost surely, 2^{1011221012002} is an apocalyptic number.

1011221012002 is a deficient number, since it is larger than the sum of its proper divisors (543196864310).

1011221012002 is a wasteful number, since it uses less digits than its factorization.

1011221012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686293.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1011221012002 its reverse (2002101221101), we get a palindrome (3013322233103).

The spelling of 1011221012002 in words is "one trillion, eleven billion, two hundred twenty-one million, twelve thousand, two".