2021221110002 has 4 divisors (see below), whose sum is σ = 3031831665006. Its totient is φ = 1010610555000.

The previous prime is 2021221109981. The next prime is 2021221110019. The reversal of 2021221110002 is 2000111221202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1893571397041 + 127649712961 = 1376071^2 + 357281^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505305277499 + ... + 505305277502.

Almost surely, 2^{2021221110002} is an apocalyptic number.

2021221110002 is a deficient number, since it is larger than the sum of its proper divisors (1010610555004).

2021221110002 is a wasteful number, since it uses less digits than its factorization.

2021221110002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010610555003.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2021221110002 its reverse (2000111221202), we get a palindrome (4021332331204).

The spelling of 2021221110002 in words is "two trillion, twenty-one billion, two hundred twenty-one million, one hundred ten thousand, two".