1212002220020 has 24 divisors (see below), whose sum is σ = 2604395469984. Its totient is φ = 473526448416.

The previous prime is 1212002219969. The next prime is 1212002220041. The reversal of 1212002220020 is 200222002121.

It is a junction number, because it is equal to n+sod(n) for n = 1212002219977 and 1212002220004.

It is a congruent number.

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, 704651594 + ... + 704653313.

It is an arithmetic number, because the mean of its divisors is an integer number (108516477916).

Almost surely, 2^{1212002220020} is an apocalyptic number.

1212002220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212002220020 is an abundant number, since it is smaller than the sum of its proper divisors (1392393249964).

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

1212002220020 is a wasteful number, since it uses less digits than its factorization.

1212002220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409304959 (or 1409304957 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1212002220020 its reverse (200222002121), we get a palindrome (1412224222141).

The spelling of 1212002220020 in words is "one trillion, two hundred twelve billion, two million, two hundred twenty thousand, twenty".