1011121021002 has 32 divisors (see below), whose sum is σ = 2035803821184. Its totient is φ = 334780416000.

The previous prime is 1011121020961. The next prime is 1011121021003. The reversal of 1011121021002 is 2001201211101.

It is a super-2 number, since 2×1011121021002² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1011121021003) 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, 12805002 + ... + 12883722.

It is an arithmetic number, because the mean of its divisors is an integer number (63618869412).

Almost surely, 2^{1011121021002} is an apocalyptic number.

1011121021002 is an abundant number, since it is smaller than the sum of its proper divisors (1024682800182).

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

1011121021002 is a wasteful number, since it uses less digits than its factorization.

1011121021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93054.

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

Adding to 1011121021002 its reverse (2001201211101), we get a palindrome (3012322232103).

The spelling of 1011121021002 in words is "one trillion, eleven billion, one hundred twenty-one million, twenty-one thousand, two".