1202223021 has 16 divisors (see below), whose sum is σ = 1630464000. Its totient is φ = 787848768.

The previous prime is 1202223013. The next prime is 1202223023. The reversal of 1202223021 is 1203222021.

It is a happy number.

It is not a de Polignac number, because 1202223021 - 2³ = 1202223013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202223023) 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, 27055 + ... + 56003.

It is an arithmetic number, because the mean of its divisors is an integer number (101904000).

Almost surely, 2^1202223021 is an apocalyptic number.

It is an amenable number.

1202223021 is a deficient number, since it is larger than the sum of its proper divisors (428240979).

1202223021 is a wasteful number, since it uses less digits than its factorization.

1202223021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29188.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1202223021 is about 34673.0878492239. The cubic root of 1202223021 is about 1063.3143622584.

Adding to 1202223021 its reverse (1203222021), we get a palindrome (2405445042).

The spelling of 1202223021 in words is "one billion, two hundred two million, two hundred twenty-three thousand, twenty-one".