1212020109988 has 12 divisors (see below), whose sum is σ = 2121046128432. Its totient is φ = 606006930440.

The previous prime is 1212020109961. The next prime is 1212020110031. The reversal of 1212020109988 is 8899010202121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239943 + ... + 1575313.

It is an arithmetic number, because the mean of its divisors is an integer number (176753844036).

Almost surely, 2^{1212020109988} is an apocalyptic number.

It is an amenable number.

1212020109988 is a deficient number, since it is larger than the sum of its proper divisors (909026018444).

1212020109988 is a wasteful number, since it uses less digits than its factorization.

1212020109988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562282 (or 1562280 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 43.

The spelling of 1212020109988 in words is "one trillion, two hundred twelve billion, twenty million, one hundred nine thousand, nine hundred eighty-eight".