1202001211220 has 144 divisors (see below), whose sum is σ = 2675838670848. Its totient is φ = 453073098240.

The previous prime is 1202001211211. The next prime is 1202001211231. The reversal of 1202001211220 is 221121002021.

It is a junction number, because it is equal to n+sod(n) for n = 1202001211195 and 1202001211204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 420720032 + ... + 420722888.

It is an arithmetic number, because the mean of its divisors is an integer number (18582212992).

Almost surely, 2^{1202001211220} is an apocalyptic number.

1202001211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1202001211220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337919335424).

1202001211220 is an abundant number, since it is smaller than the sum of its proper divisors (1473837459628).

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

1202001211220 is a wasteful number, since it uses less digits than its factorization.

1202001211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350 (or 3305 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1202001211220 its reverse (221121002021), we get a palindrome (1423122213241).

The spelling of 1202001211220 in words is "one trillion, two hundred two billion, one million, two hundred eleven thousand, two hundred twenty".