20021202201111 has 16 divisors (see below), whose sum is σ = 28859390563200. Its totient is φ = 12303213869088.

The previous prime is 20021202201101. The next prime is 20021202201131. The reversal of 20021202201111 is 11110220212002.

It is not a de Polignac number, because 20021202201111 - 2¹⁸ = 20021201938967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021202201101) 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, 4746608181 + ... + 4746612398.

It is an arithmetic number, because the mean of its divisors is an integer number (1803711910200).

Almost surely, 2^{20021202201111} is an apocalyptic number.

20021202201111 is a deficient number, since it is larger than the sum of its proper divisors (8838188362089).

20021202201111 is a wasteful number, since it uses less digits than its factorization.

20021202201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9493220638.

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

Adding to 20021202201111 its reverse (11110220212002), we get a palindrome (31131422413113).

The spelling of 20021202201111 in words is "twenty trillion, twenty-one billion, two hundred two million, two hundred one thousand, one hundred eleven".