101221212002022 has 96 divisors (see below), whose sum is σ = 258735003770880. Its totient is φ = 27986702316480.

The previous prime is 101221212002021. The next prime is 101221212002033. The reversal of 101221212002022 is 220200212122101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 101221212001986 and 101221212002004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221212002021) 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, 159160723 + ... + 159795425.

It is an arithmetic number, because the mean of its divisors is an integer number (2695156289280).

Almost surely, 2^{101221212002022} is an apocalyptic number.

101221212002022 is an abundant number, since it is smaller than the sum of its proper divisors (157513791768858).

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

101221212002022 is a wasteful number, since it uses less digits than its factorization.

101221212002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675578 (or 675575 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 101221212002022 its reverse (220200212122101), we get a palindrome (321421424124123).

The spelling of 101221212002022 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred twelve million, two thousand, twenty-two".