102220021200000 has 384 divisors, whose sum is σ = 370233530412480. Its totient is φ = 24780608000000.

The previous prime is 102220021199971. The next prime is 102220021200001. The reversal of 102220021200000 is 2120022201.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (102220021200001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9328030 + ... + 17071970.

Almost surely, 2^{102220021200000} is an apocalyptic number.

102220021200000 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 102220021200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185116765206240).

102220021200000 is an abundant number, since it is smaller than the sum of its proper divisors (268013509212480).

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

102220021200000 is an frugal number, since it uses more digits than its factorization.

102220021200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7743994 (or 7743962 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 102220021200000 its reverse (2120022201), we get a palindrome (102222141222201).

The spelling of 102220021200000 in words is "one hundred two trillion, two hundred twenty billion, twenty-one million, two hundred thousand".