2021121202 has 8 divisors (see below), whose sum is σ = 3041430912. Its totient is φ = 1007310900.

The previous prime is 2021121191. The next prime is 2021121209. The reversal of 2021121202 is 2021211202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2021121209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1624074 + ... + 1625317.

It is an arithmetic number, because the mean of its divisors is an integer number (380178864).

Almost surely, 2^2021121202 is an apocalyptic number.

2021121202 is a deficient number, since it is larger than the sum of its proper divisors (1020309710).

2021121202 is a wasteful number, since it uses less digits than its factorization.

2021121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249704.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2021121202 is about 44956.8815866937. The cubic root of 2021121202 is about 1264.3407026517.

Adding to 2021121202 its reverse (2021211202), we get a palindrome (4042332404).

Subtracting 2021121202 from its reverse (2021211202), we obtain a square (90000 = 300²).

The spelling of 2021121202 in words is "two billion, twenty-one million, one hundred twenty-one thousand, two hundred two".