1202221388 has 6 divisors (see below), whose sum is σ = 2103887436. Its totient is φ = 601110692.

The previous prime is 1202221387. The next prime is 1202221411. The reversal of 1202221388 is 8831222021.

It is a self number, because there is not a number n which added to its sum of digits gives 1202221388.

It is not an unprimeable number, because it can be changed into a prime (1202221387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150277670 + ... + 150277677.

It is an arithmetic number, because the mean of its divisors is an integer number (350647906).

Almost surely, 2^1202221388 is an apocalyptic number.

It is an amenable number.

1202221388 is a deficient number, since it is larger than the sum of its proper divisors (901666048).

1202221388 is a wasteful number, since it uses less digits than its factorization.

1202221388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300555351 (or 300555349 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 1202221388 is about 34673.0643006931. The cubic root of 1202221388 is about 1063.3138808189.

The spelling of 1202221388 in words is "one billion, two hundred two million, two hundred twenty-one thousand, three hundred eighty-eight".