1022201000 has 32 divisors (see below), whose sum is σ = 2391952680. Its totient is φ = 408880000.

The previous prime is 1022200981. The next prime is 1022201017. The reversal of 1022201000 is 1022201.

It can be written as a sum of positive squares in 4 ways, for example, as 543729124 + 478471876 = 23318^2 + 21874^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510101 + ... + 512100.

Almost surely, 2^1022201000 is an apocalyptic number.

1022201000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022201000 is an abundant number, since it is smaller than the sum of its proper divisors (1369751680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022201000 is a wasteful number, since it uses less digits than its factorization.

1022201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022222 (or 1022208 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1022201000 is about 31971.8782682532. The cubic root of 1022201000 is about 1007.3462340272.

Adding to 1022201000 its reverse (1022201), we get a palindrome (1023223201).

1022201000 divided by its reverse (1022201) gives a cube (1000 = 10³).

It can be divided in two parts, 10 and 22201000, that multiplied together give a square (222010000 = 14900²).

The spelling of 1022201000 in words is "one billion, twenty-two million, two hundred one thousand".