1001210020220 has 48 divisors (see below), whose sum is σ = 2137164254400. Its totient is φ = 393890065920.

The previous prime is 1001210020219. The next prime is 1001210020267. The reversal of 1001210020220 is 220200121001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26246321 + ... + 26284439.

It is an arithmetic number, because the mean of its divisors is an integer number (44524255300).

Almost surely, 2^{1001210020220} is an apocalyptic number.

1001210020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001210020220 is an abundant number, since it is smaller than the sum of its proper divisors (1135954234180).

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

1001210020220 is a wasteful number, since it uses less digits than its factorization.

1001210020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59718 (or 59716 counting only the distinct ones).

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

Adding to 1001210020220 its reverse (220200121001), we get a palindrome (1221410141221).

The spelling of 1001210020220 in words is "one trillion, one billion, two hundred ten million, twenty thousand, two hundred twenty".