1022010221 has 8 divisors (see below), whose sum is σ = 1073606400. Its totient is φ = 971010832.

The previous prime is 1022010211. The next prime is 1022010259. The reversal of 1022010221 is 1220102201.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022010221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022010211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145685 + ... + 152538.

It is an arithmetic number, because the mean of its divisors is an integer number (134200800).

Almost surely, 2^1022010221 is an apocalyptic number.

It is an amenable number.

1022010221 is a deficient number, since it is larger than the sum of its proper divisors (51596179).

1022010221 is a wasteful number, since it uses less digits than its factorization.

1022010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298395.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1022010221 is about 31968.8945852058. The cubic root of 1022010221 is about 1007.2835612703.

Adding to 1022010221 its reverse (1220102201), we get a palindrome (2242112422).

The spelling of 1022010221 in words is "one billion, twenty-two million, ten thousand, two hundred twenty-one".