1001212202000 has 40 divisors (see below), whose sum is σ = 2420931109272. Its totient is φ = 400484880000.

The previous prime is 1001212201943. The next prime is 1001212202009. The reversal of 1001212202000 is 2022121001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14416324624 + 986795877376 = 120068^2 + 993376^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1001212202009) 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, 250301051 + ... + 250305050.

Almost surely, 2^{1001212202000} is an apocalyptic number.

1001212202000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001212202000 is an abundant number, since it is smaller than the sum of its proper divisors (1419718907272).

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

1001212202000 is an equidigital number, since it uses as much as digits as its factorization.

1001212202000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500606124 (or 500606108 counting only the distinct ones).

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

Adding to 1001212202000 its reverse (2022121001), we get a palindrome (1003234323001).

The spelling of 1001212202000 in words is "one trillion, one billion, two hundred twelve million, two hundred two thousand".