20211002221202 has 8 divisors (see below), whose sum is σ = 32648542049676. Its totient is φ = 9328154871312.

The previous prime is 20211002221199. The next prime is 20211002221211. The reversal of 20211002221202 is 20212220011202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20051776482241 + 159225738961 = 4477921^2 + 399031^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20211002221202² (a number of 27 digits) contains 22 as substring.

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, 388673119613 + ... + 388673119664.

Almost surely, 2^{20211002221202} is an apocalyptic number.

20211002221202 is a deficient number, since it is larger than the sum of its proper divisors (12437539828474).

20211002221202 is a wasteful number, since it uses less digits than its factorization.

20211002221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777346239292.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20211002221202 its reverse (20212220011202), we get a palindrome (40423222232404).

The spelling of 20211002221202 in words is "twenty trillion, two hundred eleven billion, two million, two hundred twenty-one thousand, two hundred two".