1022201951 has 2 divisors, whose sum is σ = 1022201952. Its totient is φ = 1022201950.

The previous prime is 1022201927. The next prime is 1022202001. The reversal of 1022201951 is 1591022201.

It is a weak prime.

It is an emirp because it is prime and its reverse (1591022201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022201951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022200951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511100975 + 511100976.

It is an arithmetic number, because the mean of its divisors is an integer number (511100976).

Almost surely, 2^1022201951 is an apocalyptic number.

1022201951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022201951 is an equidigital number, since it uses as much as digits as its factorization.

1022201951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1022201951 is about 31971.8931406947. The cubic root of 1022201951 is about 1007.3465464204.

The spelling of 1022201951 in words is "one billion, twenty-two million, two hundred one thousand, nine hundred fifty-one".