2021661202 has 16 divisors (see below), whose sum is σ = 3321054432. Its totient is φ = 915358720.

The previous prime is 2021661193. The next prime is 2021661217.

2021661202 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2021661202² = 8174228031344169608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 173128 + ... + 184435.

It is an arithmetic number, because the mean of its divisors is an integer number (207565902).

Almost surely, 2^2021661202 is an apocalyptic number.

2021661202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2021661202 is a deficient number, since it is larger than the sum of its proper divisors (1299393230).

2021661202 is a wasteful number, since it uses less digits than its factorization.

2021661202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357833.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2021661202 is about 44962.8869402311. The cubic root of 2021661202 is about 1264.4532941485.

It can be divided in two parts, 20216 and 61202, that added together give a palindrome (81418).

The spelling of 2021661202 in words is "two billion, twenty-one million, six hundred sixty-one thousand, two hundred two".