1202222021 has 16 divisors (see below), whose sum is σ = 1614173568. Its totient is φ = 864734400.

The previous prime is 1202222011. The next prime is 1202222023.

1202222021 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 1202222021 - 2⁶ = 1202221957 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1202221987 and 1202222005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202222023) 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, 599510 + ... + 601511.

It is an arithmetic number, because the mean of its divisors is an integer number (100885848).

Almost surely, 2^1202222021 is an apocalyptic number.

1202222021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1202222021 is a deficient number, since it is larger than the sum of its proper divisors (411951547).

1202222021 is a wasteful number, since it uses less digits than its factorization.

1202222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201052.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1202222021 is about 34673.0734288150. The cubic root of 1202222021 is about 1063.3140674394.

It can be divided in two parts, 12022 and 22021, that added together give a palindrome (34043).

The spelling of 1202222021 in words is "one billion, two hundred two million, two hundred twenty-two thousand, twenty-one".